<SEC-DOCUMENT>0001193125-19-065947-index.html : 20190307
<SEC-HEADER>0001193125-19-065947.hdr.sgml : 20190307
<ACCEPTANCE-DATETIME>20190306194205
ACCESSION NUMBER:		0001193125-19-065947
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20190307
DATE AS OF CHANGE:		20190306
EFFECTIVENESS DATE:		20190307

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KLA TENCOR CORP
		CENTRAL INDEX KEY:			0000319201
		STANDARD INDUSTRIAL CLASSIFICATION:	OPTICAL INSTRUMENTS & LENSES [3827]
		IRS NUMBER:				042564110
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-230112
		FILM NUMBER:		19663940

	BUSINESS ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035
		BUSINESS PHONE:		4088756000

	MAIL ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KLA INSTRUMENTS CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>d699865ds8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: d699865ds8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d699865dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d699865dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>3
<FILENAME>d699865dex101.htm
<DESCRIPTION>EX-10.1
<TEXT>
Document 3 - file: d699865dex101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>4
<FILENAME>d699865dex102.htm
<DESCRIPTION>EX-10.2
<TEXT>
Document 4 - file: d699865dex102.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>5
<FILENAME>d699865dex103.htm
<DESCRIPTION>EX-10.3
<TEXT>
Document 5 - file: d699865dex103.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>6
<FILENAME>d699865dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 6 - file: d699865dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g699865dsp7.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g699865dsp7.jpg

</DOCUMENT>
</SEC-DOCUMENT>